Answer:
The speed is constant.
Explanation:
The equation for a straight-line graph is
y = mx + b
where m and b are constants.
m is the slope of the line and b is the y-intercept.
If we change the variables, the equation becomes
d = mt + b
[tex]m = \frac{\Delta d}{\Delta t} = = \frac{\text{ distance}}{\text{time}} = \text{speed}[/tex]
Since m is constant, so is the speed.
